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Arterioscler Thromb Vasc Biol:长期暴露于低水平的有毒金属环境,可能增加动脉堵塞风险

2022-02-03 “心关注”公众号 “心关注”公众号

金属,特别是砷、镉、钛和锑是动脉粥样硬化的相关危险因素,即使在最低水平的接触下,以及在中年工作人员中也是如此。

近日,发表在Arterioscler Thromb Vasc Biol杂志上的一项研究结果支持砷、镉、钛、锑作为致动脉粥样硬化的危险因素。减少这些金属环境暴露及采取有效的干预措施可能降低健康人群患心血管疾病的风险。

金属在环境中无处不在,根据世界卫生组织的数据,如果我们能够清除环境污染物,可以避免全球约31%的心血管疾病负担。既往研究表明,接触饮用水、空气、食品和烟草烟雾中的有毒金属物质与患心血管疾病的高风险相关。另有证据发现,在减少与铅、镉等金属的接触后,美国心血管疾病死亡率下降了32%。为进一步研究非必需金属暴露与亚临床动脉粥样硬化的联系,相关研究人员对西班牙一家汽车组装厂的1873名工人进行了尿液金属测定,并通过超声检查确定颈动脉和股动脉中的斑块存在。

研究结果显示,中位砷、钡、镉、铬、锑、钛、铀、钒和钨水平分别为1.83、1.98、0.27、1.18、0.05、9.8、0.03、0.66和0.23 μg/g creatinine。尿液中镉和砷含量较高的人更容易有颈动脉斑块形成;镉和钛含量较高的人则更容易有股动脉斑块形成;而冠状动脉中的斑块则与钛有关;砷(OR 1.25,95%CI 1.03-1.51)、镉(OR 1.67,95%CI 1.22-2.29),钛(OR 1.26,95%CI 1.04-1.52)。研究还发现,年龄较大参与者的尿液中有毒金属的含量高于年轻人;女性的这一水平高于男性;与从不吸烟的人相比,吸烟的成年人体内砷、镉、铬和钛的含量更高。

该研究的合着者Maria Tellez-Plaza博士指出,与其他已发表的研究相比,本研究人群中的金属含量普遍较低。金属,特别是砷、镉、钛和锑是动脉粥样硬化的相关危险因素,即使在最低水平的接触下,以及在中年工作人员中也是如此。目前关于镉、砷和其他金属的全球环境、职业和食品安全标准可能不足以保护人们免受与金属有关的不利健康影响;预防和缓解金属接触有可能改善心血管疾病的发生。

原始出处:

Grau-Perez M, Caballero-Mateos MJ, Domingo-Relloso A, et al. Toxic Metals and Subclinical Atherosclerosis in Carotid, Femoral, and Coronary Vascular Territories: The Aragon Workers Health Study. Arterioscler Thromb Vasc Biol. 2022 Jan;42(1):87-99. doi: 10.1161/ATVBAHA.121.316358. Epub 2021 Dec 9. PMID: 34879710.

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    2022-09-27 sunylz
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    2022-07-09 quxin068
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    2022-03-10 医者仁者

    #钒#这些#微量元素#,少的时候有益的,多则有害了

    0

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    2022-02-04 zhaojie88
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